How to wait until a script inside a cloned model finish? [closed]

I have a Model (not ModelScript) this model contains a script, this script set the PrimaryPart. my problem is, when I clone the model, I need to use the function SetPrimaryPartCFrame(cframe), to position the model, like this:

local cframe = CFrame.new(0, 0, 0) --whatever position
local name = "model name"
local model = game.ReplicatedStorage:FindFirstChild(name):Clone()
--at this point, the cloned script in the model is running,
--but it's not finish
--so the PrimaryPart  of the model has not set
model:SetPrimaryPartCFrame(cframe)

Now I got this error Model:SetPrimaryCFrame() failed because no PrimaryPart has been set, or the PrimaryPart no longer exists. Please set Model.PrimaryPart before using this., So my question is: how to wait until the script in the model finish?

Any help will be appreciated.